Malossi 210 cc tuning kits for Vespa p-range, P200, V2008, Sport, MHR - first sight
Malossi has updated the famous 210cc tuning kits. The V2008 version is superseded by two different versions of the kit. Now you do have the choice between the Sport or the MHR versions.
We already reoprted about this and now to take a closer look of what has been changed, improved and altered.
There are three part boost ports now. increased port timing areas for the transfer ports and an opened bottom of the barrel at the transfer area.
Compared to the 2008 version of the Malossi 210 kit, the wider auxiliary transfer ports, the area and direction was changed as well.
While the V2008 was working at a steep angle to the cylinder wall of around 60 °, both new kits seem to have the angle modified for the greater pulse of the larger auxiliary ports. It flows at around 42 ° into the bore.
On it goes now. Now with the calliper and we check the port timings. If you thought the MHR has higher port timing readings only, is not right.
| MALOSSI 210 | Old | Sport | MHR |
| Barrel height (surface area to surface area) | 96,73 | 96,73 | 96,56 |
| Exhaust port | 33,85 | 32,85 | 32,70 |
| Transfers | 47,20 | 47,35 | 45,85 |
| Exhaust outer Ø | 44,20 | 44,45 | 44,45 |
| Exhaust inner Ø | 37,80 | 38,00 | 38,30 |
| 57 mm | |||
| w / o recess of piston (MHR 0.2mm piston running out of bore) | |||
| transfer timing | 110,7° | 109,9° | 117,1° |
| Exhaust timing | 173,3° | 177,3° | 177,1° |
| Blow down timing | 31,3° | 33,7° | 30° |
| 60mm 1.5mm base gasket | |||
| w / o recess (MHR 0.2mm piston running out of bore) | |||
| transfer timing | 124,4° | 123,6° | 129,9° |
| Exhaust timing | 180,9° | 184,7° | 184,5° |
| Blow down timing | 28,25° | 30,55° | 27,3° |
| 60mm 1.5mm head gasket | |||
| measurements include MHR 0.2mm piston running out of bore | |||
| transfer timing | 116,7° | 115,9° | 125,1° |
| Exhaust timing | 175,2° | 179° | 183,2° |
| Blow down timing | 29,25° | 31,55° | 29,05° |
| 1.0mm piston running out of bore | |||
| transfer timing | 119,3 | 118,6 | 126,1 |
| Exhaust timing | 177,1 | 180,9 | 181,5 |
Next week we are deepening this issue. Now I am needed to do some laps at the race scoot.
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